.sentence-study {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  
    .sentence-selector {
      margin: 20px 0;
  
      :deep(.el-select) {
        width: 100%;
      }
  
      :deep(.el-select-dropdown__item) {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }
  
      .sentence-option {
        display: flex;
        align-items: center;
        overflow: hidden;
        text-overflow: ellipsis;
        
        .sentence-number {
          flex-shrink: 0;
          margin-right: 8px;
          font-weight: bold;
        }
        
        .sentence-text {
          flex-grow: 1;
          overflow: hidden;
          text-overflow: ellipsis;
          white-space: nowrap;
        }
      }
    }
  
    .sentence-study-options {
      display: flex;
      gap: 15px;
      margin: 30px 0;
      flex-wrap: wrap;
  
      .control-button {
        padding: 12px 20px;
        border-radius: 8px;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
        border: none;
        background-color: #f8f9fa;
        color: #333;
        font-weight: 500;
  
        &:hover {
          transform: translateY(-2px);
          box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
          background-color: #e9ecef;
        }
  
        &.primary {
          background-color: #409eff;
          color: white;
  
          &:hover {
            background-color: #337ecc;
            box-shadow: 0 4px 12px rgba(64, 158, 255, 0.3);
          }
        }
  
        &:disabled {
          opacity: 0.6;
          cursor: not-allowed;
  
          &:hover {
            transform: none;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
          }
        }
      }
    }
  
    .current-sentence-display {
      margin: 30px 0;
      padding: 30px;
      border-radius: 10px;
      background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
      transition: box-shadow 0.3s ease;
  
      &:hover {
        box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
      }
  
      .sentence-item {
        margin-bottom: 20px;
  
        &:last-child {
          margin-bottom: 0;
        }
  
        &.english p {
          font-family: 'DynaPuff', sans-serif;
          font-size: 1.4rem;
          font-weight: 600;
          color: #212529;
          margin: 0;
          line-height: 1.5;
        }
  
        &.chinese p {
          font-size: 1.1rem;
          color: #495057;
          margin: 0;
          line-height: 1.5;
        }
      }
    }
  
    .recording-status {
      margin: 20px 0;
    }
  
    .recorded-audio-list {
      margin-top: 20px;
      padding: 10px 30px;
      border-radius: 10px;
      background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  
      h3 {
        font-size: 1.4rem;
        color: #212529;
        margin-bottom: 20px;
        font-weight: 600;
      }
  
      .table-button {
        background-color: #409eff;
        border-color: #409eff;
        color: white;
  
        &:hover {
          background-color: #337ecc;
          border-color: #337ecc;
        }
      }
    }
  
    // 响应式设计
    @media (max-width: 768px) {
      padding: 15px;
 
      .sentence-study-options {
        gap: 10px;
        margin: 20px 0;
        justify-content: space-around;
  
        .control-button {
          padding: 10px 5px;
          font-size: 0.9rem;
        }
      }
  
      .current-sentence-display {
        padding: 20px;
        margin: 20px 0;
  
        .sentence-item {
          &.english p {
            font-size: 1.2rem;
          }
  
          &.chinese p {
            font-size: 1rem;
          }
        }
      }
  
      .recorded-audio-list {
        padding: 20px;
        margin-top: 30px;
  
        h3 {
          font-size: 1.2rem;
        }
      }
    }
  }